£593 Cheap Flights from Guam (GUM) to London (LHR)

View £593 flight on Wed, 10 Feb 2027Opens in a new window

Popular airlines from Barrigada - A.B. Won Pat International Airport (GUM) to Heathrow Airport (LHR)

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Cheap Flights from Guam (GUM) to London (LHR)

Prices were available within the past 7 days and start at £593 for one-way flights and £1,273 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Philippine Airlines
Fri, 19 Jun - Sat, 27 Jun
GUM
Guam
LHR
London
£1,273 Return, found 2 hours ago
£1,273
Return
found 2 hours ago
Select Philippine Airlines flight, departing Fri, 19 Jun from Guam to London, returning Sat, 27 Jun, priced at £1,273 found 2 hours ago
Philippine Airlines
Fri, 19 Jun - Sat, 27 Jun
GUM
Guam
LHR
London
£1,303 Return, found 2 hours ago
£1,303
Return
found 2 hours ago
Select Philippine Airlines flight, departing Fri, 19 Jun from Guam to London, returning Sat, 27 Jun, priced at £1,303 found 2 hours ago
Philippine Airlines
Sun, 24 May - Wed, 5 Aug
GUM
Guam
LHR
London
£1,354 Return, found 4 days ago
£1,354
Return
found 4 days ago
Select Philippine Airlines flight, departing Sun, 24 May from Guam to London, returning Wed, 5 Aug, priced at £1,354 found 4 days ago
Philippine Airlines
Fri, 19 Jun - Sat, 27 Jun
GUM
Guam
LHR
London
£1,405 Return, found 2 hours ago
£1,405
Return
found 2 hours ago
Select Philippine Airlines flight, departing Fri, 19 Jun from Guam to London, returning Sat, 27 Jun, priced at £1,405 found 2 hours ago
Philippine Airlines
Fri, 19 Jun - Sat, 27 Jun
GUM
Guam
LHR
London
£1,435 Return, found 2 hours ago
£1,435
Return
found 2 hours ago
Select Philippine Airlines flight, departing Fri, 19 Jun from Guam to London, returning Sat, 27 Jun, priced at £1,435 found 2 hours ago
Japan Airlines
Wed, 29 Apr - Mon, 4 May
GUM
Guam
LHR
London
£1,439 Return, found 2 days ago
£1,439
Return
found 2 days ago
Select Japan Airlines flight, departing Wed, 29 Apr from Guam to London, returning Mon, 4 May, priced at £1,439 found 2 days ago
Japan Airlines
Wed, 29 Apr - Mon, 4 May
GUM
Guam
LHR
London
£1,441 Return, found 2 days ago
£1,441
Return
found 2 days ago
Select Japan Airlines flight, departing Wed, 29 Apr from Guam to London, returning Mon, 4 May, priced at £1,441 found 2 days ago
Philippine Airlines
Sun, 24 May - Wed, 5 Aug
GUM
Guam
LHR
London
£1,485 Return, found 4 days ago
£1,485
Return
found 4 days ago
Select Philippine Airlines flight, departing Sun, 24 May from Guam to London, returning Wed, 5 Aug, priced at £1,485 found 4 days ago
Japan Airlines
Wed, 29 Apr - Mon, 4 May
GUM
Guam
LHR
London
£1,549 Return, found 2 days ago
£1,549
Return
found 2 days ago
Select Japan Airlines flight, departing Wed, 29 Apr from Guam to London, returning Mon, 4 May, priced at £1,549 found 2 days ago
Korean Air
Fri, 19 Jun - Sat, 27 Jun
GUM
Guam
LHR
London
£1,589 Return, found 2 hours ago
£1,589
Return
found 2 hours ago
Select Korean Air flight, departing Fri, 19 Jun from Guam to London, returning Sat, 27 Jun, priced at £1,589 found 2 hours ago

Frequently asked questions

How much is a flight from Guam International Airport to LHR?
If you're planning on travelling between Guam Intl. Airport and LHR, round-trip journeys start from £1,273. This figure is based on fares advertised within the last 7 days on Expedia for flights departing within the next year, so don't wait around. Book today and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Guam International Airport to Heathrow Airport?
We understand that circumstances change unexpectedly, so we've made it as simple as possible for you to cancel your flight online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from Guam International Airport to LHR that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for GUM to Heathrow Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from GUM to London Heathrow?
Barrigada to Hounslow is around 12,100 kilometres, so get ready to spend quite a while in the air. Make sure you pack all the essentials, from your toothbrush to your hairbrush. Take a couple of snacks to nibble on throughout your trip too.
Which airlines fly direct from GUM to Heathrow Airport?
If you want to fly straight from A.B. Won Pat Intl. Airport (GUM) to LHR, you'll need to book a flight with one or more stops. Unfortunately, there are no airlines that fly directly between these airports.
Are Guam Intl. Airport to Heathrow Airport flight tickets cheaper when they're purchased at the last minute?
Airline tickets from Guam International Airport to LHR are available up to a year before departure on Expedia. And although you may score fantastic last-minute deals, it's not something you should count on. Also, booking your flights in advance means you'll have more choices — and you can avoid getting trapped in the dreaded middle seat! We're constantly updating our fares to make sure you get the biggest bargains, so check back often for all the latest specials.

Frequently asked questions

How do I find cheap flights from Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow)?
To find a cheap flight from Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow)?
There are approximately 4 connecting flights per day from Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow). Some common connection points include Ninoy Aquino Intl. (MNL), Narita Intl. (NRT), and Incheon Intl. (ICN).
What is the earliest flight from Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow)?
The earliest flight from Guam (GUM-A.B. Won Pat Intl.) (GUM) to London (LHR-Heathrow) (LHR) typically departs at approximately 1:00 AM local time, operated by Korean Air. This is a seasonal service active in November. An early departure like this can help maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow)?
You'll typically find the most flights from Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow) on a Wednesday, with around 4 flights available. This gives you several flight options for your travel plans. Major airlines on this route include Korean Air, Japan Airlines, and Philippine Airlines.
What are the most popular departure times for flights from Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow)?
The most popular departure times for flights from Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow) are in the early morning, between 3am and 6am. This accounts for around 68% of total traffic. Many major carriers, including Korean Air and Virgin Atlantic, offer flights during this window. This timing works well for connecting flights, allowing you to arrive in London later in the day.
How long does it take to fly from Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow)?
A flight from GUM to LHR with a layover takes around 24 hours 20 minutes, with the route covering approximately 7,488 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow)?
Select the "Business class" and "First class" filters when looking for GUM to LHR flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow) flight with Expedia?
It's easy to earn miles on a Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for London from A.B. Won Pat Intl. (GUM)?
When traveling from A.B. Won Pat Intl. (GUM) to London, you can fly into Stansted (STN) and Heathrow (LHR). Some flights may connect through major hubs like Ninoy Aquino Intl. (MNL) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow) at the last minute?
Typically, booking a last minute flight from Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow) flight and hotel package?
Securing a Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow)?
If you booked your Guam (GUM-A.B. Won Pat Intl.) to London (LHR-Heathrow) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
A.B. Won Pat Intl.
Destination airport
Heathrow
Return price
£1,273
Distance
11979 km

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